The A's scored twice in the first, three times in the third and went on to shut out the Royals 8-0 Wednesday night for their third straight win in Kansas City.
Sean Manaea, pitching against the team that drafted him, gave up three hits in five scoreless innings. He struck out five Royals hitters.
Yonder Alonso led the offensive attack with three hits and two RBI. Rookie Ryon Healy collected two hits and drove in a run.